diff --git a/tempest/api/compute/admin/test_flavors.py b/tempest/api/compute/admin/test_flavors.py
index 364d080..a3c25a2 100644
--- a/tempest/api/compute/admin/test_flavors.py
+++ b/tempest/api/compute/admin/test_flavors.py
@@ -63,13 +63,13 @@
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           flavor_id,
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=flavor_id,
                                            ephemeral=self.ephemeral,
                                            swap=self.swap,
-                                           rxtx=self.rxtx)
+                                           rxtx_factor=self.rxtx)
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         self.assertEqual(flavor['name'], flavor_name)
         self.assertEqual(flavor['vcpus'], self.vcpus)
@@ -115,13 +115,13 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id,
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id,
                                            ephemeral=self.ephemeral,
                                            swap=self.swap,
-                                           rxtx=self.rxtx)
+                                           rxtx_factor=self.rxtx)
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         flag = False
         # Verify flavor is retrieved
@@ -147,10 +147,10 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id)
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id)
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         self.assertEqual(flavor['name'], flavor_name)
         self.assertEqual(flavor['ram'], self.ram)
@@ -182,10 +182,10 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id,
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id,
                                            is_public="False")
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         # Verify flavor is retrieved
@@ -211,10 +211,10 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id,
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id,
                                            is_public="False")
         self.addCleanup(self.flavor_clean_up, flavor['id'])
 
@@ -231,10 +231,10 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         # Create the flavor
-        flavor = self.client.create_flavor(flavor_name,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id,
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id,
                                            is_public="True")
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         flag = False
@@ -254,18 +254,18 @@
         flavor_name_public = data_utils.rand_name(self.flavor_name_prefix)
 
         # Create a non public flavor
-        flavor = self.client.create_flavor(flavor_name_not_public,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           flavor_id_not_public,
+        flavor = self.client.create_flavor(name=flavor_name_not_public,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=flavor_id_not_public,
                                            is_public="False")
         self.addCleanup(self.flavor_clean_up, flavor['id'])
 
         # Create a public flavor
-        flavor = self.client.create_flavor(flavor_name_public,
-                                           self.ram, self.vcpus,
-                                           self.disk,
-                                           flavor_id_public,
+        flavor = self.client.create_flavor(name=flavor_name_public,
+                                           ram=self.ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=flavor_id_public,
                                            is_public="True")
         self.addCleanup(self.flavor_clean_up, flavor['id'])
 
@@ -294,10 +294,10 @@
         new_flavor_id = data_utils.rand_int_id(start=1000)
 
         ram = "1024"
-        flavor = self.client.create_flavor(flavor_name,
-                                           ram, self.vcpus,
-                                           self.disk,
-                                           new_flavor_id)
+        flavor = self.client.create_flavor(name=flavor_name,
+                                           ram=ram, vcpus=self.vcpus,
+                                           disk=self.disk,
+                                           id=new_flavor_id)
         self.addCleanup(self.flavor_clean_up, flavor['id'])
         self.assertEqual(flavor['name'], flavor_name)
         self.assertEqual(flavor['vcpus'], self.vcpus)
diff --git a/tempest/api/compute/admin/test_flavors_access.py b/tempest/api/compute/admin/test_flavors_access.py
index 2baa53e..ccfe20b 100644
--- a/tempest/api/compute/admin/test_flavors_access.py
+++ b/tempest/api/compute/admin/test_flavors_access.py
@@ -56,10 +56,10 @@
         # private flavor will return an empty access list
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
         flavor_access = self.client.list_flavor_access(new_flavor_id)
@@ -70,10 +70,10 @@
         # Test to add and remove flavor access to a given tenant.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
         # Add flavor access to a tenant.
diff --git a/tempest/api/compute/admin/test_flavors_access_negative.py b/tempest/api/compute/admin/test_flavors_access_negative.py
index e5ae23b..03898c2 100644
--- a/tempest/api/compute/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/admin/test_flavors_access_negative.py
@@ -57,10 +57,10 @@
         # Test to list flavor access with exceptions by querying public flavor
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='True')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
         self.assertRaises(lib_exc.NotFound,
@@ -73,10 +73,10 @@
         # Test to add flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
         self.assertRaises(lib_exc.Forbidden,
@@ -90,10 +90,10 @@
         # Test to remove flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
         # Add flavor access to a tenant.
@@ -111,10 +111,10 @@
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
 
@@ -136,10 +136,10 @@
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.client.create_flavor(flavor_name,
-                                               self.ram, self.vcpus,
-                                               self.disk,
-                                               new_flavor_id,
+        new_flavor = self.client.create_flavor(name=flavor_name,
+                                               ram=self.ram, vcpus=self.vcpus,
+                                               disk=self.disk,
+                                               id=new_flavor_id,
                                                is_public='False')
         self.addCleanup(self.client.delete_flavor, new_flavor['id'])
 
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs.py b/tempest/api/compute/admin/test_flavors_extra_specs.py
index 6060e72..6039cb2 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs.py
@@ -50,12 +50,12 @@
         swap = 1024
         rxtx = 1
         # Create a flavor so as to set/get/unset extra specs
-        cls.flavor = cls.client.create_flavor(flavor_name,
-                                              ram, vcpus,
-                                              disk,
-                                              cls.new_flavor_id,
+        cls.flavor = cls.client.create_flavor(name=flavor_name,
+                                              ram=ram, vcpus=vcpus,
+                                              disk=disk,
+                                              id=cls.new_flavor_id,
                                               ephemeral=ephemeral,
-                                              swap=swap, rxtx=rxtx)
+                                              swap=swap, rxtx_factor=rxtx)
 
     @classmethod
     def resource_cleanup(cls):
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
index fbb0822..f1e11f4 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
@@ -53,12 +53,12 @@
         swap = 1024
         rxtx = 1
         # Create a flavor
-        cls.flavor = cls.client.create_flavor(flavor_name,
-                                              ram, vcpus,
-                                              disk,
-                                              cls.new_flavor_id,
+        cls.flavor = cls.client.create_flavor(name=flavor_name,
+                                              ram=ram, vcpus=vcpus,
+                                              disk=disk,
+                                              id=cls.new_flavor_id,
                                               ephemeral=ephemeral,
-                                              swap=swap, rxtx=rxtx)
+                                              swap=swap, rxtx_factor=rxtx)
 
     @classmethod
     def resource_cleanup(cls):
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index b93aaca..0241e70 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -73,9 +73,9 @@
         ram = int(quota_set['ram']) + 1
         vcpus = 8
         disk = 10
-        flavor_ref = self.flavors_client.create_flavor(flavor_name,
-                                                       ram, vcpus, disk,
-                                                       flavor_id)
+        flavor_ref = self.flavors_client.create_flavor(name=flavor_name,
+                                                       ram=ram, vcpus=vcpus,
+                                                       disk=disk, id=flavor_id)
         self.addCleanup(self.flavors_client.delete_flavor, flavor_id)
         self.assertRaises((lib_exc.Forbidden, lib_exc.OverLimit),
                           self.client.resize,
@@ -95,9 +95,9 @@
         quota_set = self.quotas_client.show_default_quota_set(self.tenant_id)
         vcpus = int(quota_set['cores']) + 1
         disk = 10
-        flavor_ref = self.flavors_client.create_flavor(flavor_name,
-                                                       ram, vcpus, disk,
-                                                       flavor_id)
+        flavor_ref = self.flavors_client.create_flavor(name=flavor_name,
+                                                       ram=ram, vcpus=vcpus,
+                                                       disk=disk, id=flavor_id)
         self.addCleanup(self.flavors_client.delete_flavor, flavor_id)
         self.assertRaises((lib_exc.Forbidden, lib_exc.OverLimit),
                           self.client.resize,
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index 23a9cb3..e62a52b 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -269,9 +269,9 @@
 
             # Create a flavor with extra specs
             flavor = (self.flavor_client.
-                      create_flavor(flavor_with_eph_disk_name,
-                                    ram, vcpus, disk,
-                                    flavor_with_eph_disk_id,
+                      create_flavor(name=flavor_with_eph_disk_name,
+                                    ram=ram, vcpus=vcpus, disk=disk,
+                                    id=flavor_with_eph_disk_id,
                                     ephemeral=1))
             self.addCleanup(flavor_clean_up, flavor['id'])
 
@@ -287,9 +287,9 @@
 
             # Create a flavor without extra specs
             flavor = (self.flavor_client.
-                      create_flavor(flavor_no_eph_disk_name,
-                                    ram, vcpus, disk,
-                                    flavor_no_eph_disk_id))
+                      create_flavor(name=flavor_no_eph_disk_name,
+                                    ram=ram, vcpus=vcpus, disk=disk,
+                                    id=flavor_no_eph_disk_id))
             self.addCleanup(flavor_clean_up, flavor['id'])
 
             return flavor['id']
diff --git a/tempest/services/compute/json/flavors_client.py b/tempest/services/compute/json/flavors_client.py
index ee2f74c..1422944 100644
--- a/tempest/services/compute/json/flavors_client.py
+++ b/tempest/services/compute/json/flavors_client.py
@@ -47,24 +47,19 @@
         self.validate_response(schema.create_get_flavor_details, resp, body)
         return service_client.ResponseBody(resp, body['flavor'])
 
-    def create_flavor(self, name, ram, vcpus, disk, flavor_id, **kwargs):
-        """Creates a new flavor or instance type."""
-        post_body = {
-            'name': name,
-            'ram': ram,
-            'vcpus': vcpus,
-            'disk': disk,
-            'id': flavor_id,
-        }
+    def create_flavor(self, **kwargs):
+        """Creates a new flavor or instance type.
+        Most parameters except the following are passed to the API without
+        any changes.
+        :param ephemeral: The name is changed to OS-FLV-EXT-DATA:ephemeral
+        :param is_public: The name is changed to os-flavor-access:is_public
+        """
         if kwargs.get('ephemeral'):
-            post_body['OS-FLV-EXT-DATA:ephemeral'] = kwargs.get('ephemeral')
-        if kwargs.get('swap'):
-            post_body['swap'] = kwargs.get('swap')
-        if kwargs.get('rxtx'):
-            post_body['rxtx_factor'] = kwargs.get('rxtx')
+            kwargs['OS-FLV-EXT-DATA:ephemeral'] = kwargs.pop('ephemeral')
         if kwargs.get('is_public'):
-            post_body['os-flavor-access:is_public'] = kwargs.get('is_public')
-        post_body = json.dumps({'flavor': post_body})
+            kwargs['os-flavor-access:is_public'] = kwargs.pop('is_public')
+
+        post_body = json.dumps({'flavor': kwargs})
         resp, body = self.post('flavors', post_body)
 
         body = json.loads(body)